An announcement on Kensington Palace’s Twitter page this afternoon read: ‘Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 1101hrs. The baby weighs 8lbs 7oz. The Duke of Cambridge was present for the birth. Her Royal Highness and her child are both doing well.

‘The Queen, The Duke of Edinburgh, The Prince of Wales, The Duchess of Cornwall, Prince Harry and members of both families have been informed and are delighted with the news.’

The Queen, The Duke of Edinburgh, The Prince of Wales, The Duchess of Cornwall, Prince Harry and members of both families have been informed and are delighted with the news.

Kate, 36, and William, 35 – who married in April 2011 – announced Kate’s happy news back in September. As with her other pregnancies, she was suffering from hyperemesis gravidarum and was forced to cancel several public engagements.

But she’s since been back in the limelight, and joined the royals at a number of events before going on maternity leave last month.

We’ll update you with all the details as and when we get them. But in the meantime… congratulations to the Cambridges!